55444137 has 12 divisors (see below), whose sum is σ = 85995216. Its totient is φ = 31682280.

The previous prime is 55444111. The next prime is 55444139. The reversal of 55444137 is 73144455.

It is not a de Polignac number, because 55444137 - 2⁶ = 55444073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55444098 and 55444107.

It is not an unprimeable number, because it can be changed into a prime (55444139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188439 + ... + 188732.

It is an arithmetic number, because the mean of its divisors is an integer number (7166268).

Almost surely, 2^55444137 is an apocalyptic number.

It is an amenable number.

55444137 is a deficient number, since it is larger than the sum of its proper divisors (30551079).

55444137 is a wasteful number, since it uses less digits than its factorization.

55444137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377188 (or 377181 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 55444137 is about 7446.0819898790. The cubic root of 55444137 is about 381.3161586522.

The spelling of 55444137 in words is "fifty-five million, four hundred forty-four thousand, one hundred thirty-seven".